When you boost a Facebook post, you lose control over where it appears. Facebook decides placement, which might put your ad in spots you don't want. Learning to set campaign objectives properly gives you that control back.
And what happens when it comes to boosting posts is that you have little control, for instance, the placements. Facebook is going to show your ads anywhere, right? And you don't want that. You want to actually control where Facebook is showing your ads. Now I talked about, on another video I talked about placements and how to choose them and why to choose them and whatnot. But when you're boosting a post, I know that it's super easy, but you're leaving a lot of control to Facebook. That's not necessarily something bad, but something that you definitely, definitely wanna learn how to pick are your campaign objectives.